Trying to buy a car through Google Checkout.?

The car is an 02 Mustang GT Cobra, 56k/m and is $2850. It is is Hollywood, Florida and i'm in Bossier City, Louisiana and they will ship it to you and allow 5 days to test drive and get it inspected before you buy, but they want the money first. how does that work on Google Checkout? Do you put the money online but Google Checkout hold it while the seller ships the mustang or does the seller get it first? Because there is a lot of auto frauds on Google Checkout I just wanted to get the voice of other who have maybe used it or to see what their opinion about it is.